Match-testing machine.



F. VAN n. GRUSER & W. GREEN. MATCH TESTING MACHINE.

APPLICATION FILED APR.5. 1913.

1, 1 22,576. Patented Dec. 29, 1914.

4 v i/W/a'arm area 351., i (anyone J THE NORRIS PETERS c0. PHOTO-LITHO.,WASHING TON, D. c.

ITED sTATEs PATENT OFFIC FREDERICK VAN DYKE CRUSER, OF BARBERTON, ANDWILLIAMGREEN, 0F AKRON, OHIO, ASSIGNORS TO THE DIAMOND MATCH COMPANY, OFCHICAGO, ILLINOIS, A.

CORPORATION OF ILLINOIS.

MATCH-TESTING MACHINE.

Application filed April 5, 1913.

To all whom it may concern: Be it known that we, FREDERICK V. D. CRUsnP.and WILLIAM GREEN, citizens of the United States, and residents,respectively, of Barberton and Akron, in the county of Summit and Stateof Ohio, have invented certain new and useful Improvements inMatch-Testing Machines, of which the following is a specification.

The object of this invention is to provide an apparatus of simple andefficient construction and operation for testing matches in order todetermine the frictional ignition sensitiveness or striking efliciencyof the composition comprising the heads of the matches.

Our invention, broadly cons dered, comprehends a structure embodymgmatchstriking and match-holding members which are so coordinated thatthe head ofv a specimen match supported by said holder can be subjectedto a predetermined co-efficient of friction closely approximating thatresulting from the usual manual operation of striking a match.

The invention also comprises a rotatable striking member, and meanswhereby a specimen can be supported adjacent to, and its head moved intofrictional contact with said member.

The invention also comprises various novel features of construction andcombinations of parts, all of which will be hereinafter described andclaimed."

In the drawings Figure 1 is a plan view of an apparatus embodying a goodform of our invention, a specimen match being indicated therein. Fig. 2is a side elevation thereof. Fig. 3 is an end view of the same. Fig. 4is a detail, enlarged, partly. in section of the rear of the upperportion of the match-supporting element. Fig. 5 is an edge view of Fig.4, the match being shown in section.

11 designates a rotary friction member comprising a disk fast on one endof a horizontal shaft 12 having its bearings 1n stand:

ards 13 on an appropriate base-plate 14. On the opposite end of theshaft is a pulley 15 which is driven from a suitable source of power.The acting surface of the disk may be faced with frictional paint orother material, as indicated at 16.

17 designates a vertically-disposed lever Specification of LettersPatent.

Serial No. 759,102.

which is pivotally mounted in such manner that its upper arm is movabletoward and from the acting face of the disk. In the present instance thelever is supported by and between oppositely-disposed pivot studs,comprising screws 18, one of which 1s borne by an up-projecting flange19 at the outer edge of the base-plate and the other by a bracket 20fastened to said flange. The lower arm of the lever depends below thebase plate and is provided with a weight 21 which may be secured inpositions .of adjustment longitudinally of the lever by means of aset-screw 22. This weight constitutes a bob which tends to maintain thelever normally in vertical position. The upper arm of the lever extendsadjacent to "the horizontal diameter of the disk, near the periphery ofthe latter, and is provided wlth a spring-clip comprising complementaryspring-metal plates 23 bent into channel-form at their inner upper edgesto pro: vide' gripping jaws by and between which a match splint, (as a),may be clamped with its head adjacent the disk. The lower portions ofthe plates are fastened to the lever by rivets, or the like. Aiiixed toone side of the upper arm of the leverv is a finger 24, the upper end ofwhich extends into the plane of the match in the grasp of the clip,

and serves as a hacker for the outer end of the match. This member ispreferably provided with a socket 25 to receive and sup-. port the heelof the match. The flange 19 is extended below the base-plate 1%]: and isprovided with a series of apertures 26 which are bored at regularintervals apart in an arc described from the axis of oscillation of thelever. These orifices are designed to receive a stop-pin 27 which may beinserted into any one of them, which pin when so inserted extends intothe path of the lower arm of the lever and acts as a determinate stoptherefor. In the present instance there are ten orifices, numberedconsecutively from a point adjacent the lever when it is in PatentedDec. 29, 1914. j

vertical position, as indicated in Fig. 2,

whereby the pin can be adjusted to graduated limits within acomparatively wide the lever and thereby firmly 'held with the head ofthe match adjacent to, but out of contact with, the acting face of thedisk, and the lower arm of the lever is then manually swung to the left,as viewed in Fig. 2, until its movement is limited by the projecting pin27. The lever is then released, and, by virtue of the energy exertedthereon by the gravitation of the weight, the depending arm of the leverswings sharply toward the right until the head of the match impingesagainst the opposing rotating surface of the disk; the frictional impactclosely approaching that to which a match is subjected in the ordinarymanner of manually striking the same. The friction may be nicely variedby initially setting the weight on the arm at a predetermined distancefrom the aXis of the lever and then advancing the stop step-by-step(commencing with the aperture l) preparatory to each operation of thelever, until the match head shall be ignited by its contact with thestriking member. Thereupon the degree of ignition sensitiveness of thehead will be indicated.

As a simple and convenient means to remove the ignited match from theclip a spring arm 28 is preferably arranged to extend beneath the matchnear its head, which arm when depressed and released flies upwardagainst the opposing match and ejects it from the clip. In the presentinstance this arm comprises the extended end of a coiled spring 29 whichis secured to a stud 30 fast on a suitably-located bracket piece 31 onthe upper arm of the lever 17.

It is to be understood that our invention is not limited to theparticular form or construction herein shown and described, as thestructure may be variously modified without departure from the spirit ofthe invention.

We claim 1. A match-testing machine comprising a supporting frame, arotatable friction mem her, a match support adapted to present a matchto the face of said member, and adjustable means whereby the saidsupport may be sharply moved with a predetermined force toward the saidmember so as to proj ect the match head against and maintain it inrubbing contact with the opposing face of the member.

2. In a match-testing machine, a rotary striking member, a leveradjacent thereto, actuating means for said lever, a match holder on saidlever adapted to present a match to said striking member and anadjustable stop for determining the starting limit of said lever.

3. In a match-testing machine, a rotary striking member, an oscillatorylever adjacent thereto, a match holder on one arm of the lever adaptedto present a match to said striking member, an adjustable weight on theother arm of the lever, and an adjustable stop for determining thestarting limit of said lever.

4. A match-testing machine comprising a supporting frame, a shafttherein, means for rotating said shaft, a friction disk on said shaft, alever mounted to oscillate adjacent said disk, a match holding elementon one arm of said lever adapted to present a match to said disk, anadjustable weight on the other arm of the lever, a stationary elementprovided with a series of spaced orifices adjacent the path of thelever, and a stop adapted to be detachably inserted in any of saidorifices in order to determine the starting limit of said lever.

5. In a match-testing machine, a rotary match striking member, a matchsupport mounted for movement toward and from said member, said supporthaving a springclip by means of which a match may be clamped with itshead pointing toward said member, and adjustable means for said matchsupport whereby a predetermined rubbing impact of the match head andsaid member can be effected.

Signed at Barberton in the county of Summit and State of Ohio this firstday of April A. D. 1913.

FREDERICK VAN DYKE CRUSER. WILLIAM GREEN.

lVitnesses:

V. A. JOHNSTON, SABINA PARKS.

Copies; of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents. Washington. I). 0.

